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Whirlpool
Electric Range

Model # RM778PXT3 Official Whirlpool electric range

Here are the diagrams and repair parts for Official Whirlpool RM778PXT3 electric range, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 207 parts  |
Appliance Touch-up Paint, 6-oz (citrine White) 261900

#NI

All parts diagram

Appliance touch-up paint, 6-oz (citrine white)

Part #261900

$23.19 | 
21% OFF Phone Price : $29.19
In Stock
Cooking Appliance 14-gauge Splicing Wire, 200-degree C (red) 242831

#NI

All parts diagram

Cooking appliance 14-gauge splicing wire, 200-degree c (red)

Part #242831

$318.95
In Stock
Nut 3147378
#9

Cabinet and stirrer diagram

Nut

Part #3147378

The manufacturer no longer makes this part, and there's no substitute part

Latch Bracket 329066
#30

Door and latch diagram

Latch bracket

Part #329066

The manufacturer no longer makes this part, and there's no substitute part

Capacitor Bracket 312619
#5

Magnetron and air flow diagram

Capacitor bracket

Part #312619

The manufacturer no longer makes this part, and there's no substitute part

Vent Tube 816442
#14

Lower oven diagram

Vent tube

Part #816442

The manufacturer no longer makes this part, and there's no substitute part

Bumper 868363
#39

Control panel and latch diagram

Bumper

Part #868363

The manufacturer no longer makes this part, and there's no substitute part

Duct-ext 3147262
#48

Magnetron and air flow diagram

Duct-ext

Part #3147262

The manufacturer no longer makes this part, and there's no substitute part

Handle 816438
#2

Door diagram

Handle

Part #816438

The manufacturer no longer makes this part, and there's no substitute part

Screw 241428
Screw

Part #241428

The manufacturer no longer makes this part, and there's no substitute part

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Why is my range's oven temperature wrong?

Main causes: faulty temperature sensor, electronic control board problem, control thermostat failure, weak burner ignite…

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Why won't my range's oven heat?

Main causes: power supply problem, control thermostat or electronic control board failure, broken element, bad burner ig…

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How do I get rid of streaks on my range's oven window?

Main causes: food splatters, spilling food on the oven door, allowing liquid to drip through oven door vent when cleanin…

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Why isn't my range working?

Main causes: power supply failure, blown thermal fuse, bad relay control board, damaged terminal block, wiring failure…

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Why doesn't my range's oven broiler work?

Main causes: broken broiler element, weak or broken broil burner igniter, control system failure, faulty temperature sen…

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Why won't my range's oven bake?

Main causes: bad bake element, broken burner igniter, control system failure, blown thermal fuse, faulty temperature sen…

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Why can't I unlock my range's oven door?

Main causes: broken oven door lock assembly, wiring failure, electronic control board problem…

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Most common repair guides to help fix your ranges

These step-by-step repair guides will help you safely fix what’s broken on your range.

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How to replace a range oven door switch

How to replace a range oven door switch

The oven door switch detects whether the oven door is closed and helps control the oven light. Replace the switch if it …

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Time required
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How to replace a range oven door lock assembly

How to replace a range oven door lock assembly

Oven door not locking? You can replace the lock assembly in less than 30 minutes. Here's how.…

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Repair difficulty
Time required
 15 minutes or less

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